Asus 38" ROG Swift 2160p 144 Hz Gaming Monitor - Manual (Page 15)

1-6 Chapter 1: Product Introduction
7. Shortcut 2 GamePlus (for Remote control): By default, it is GamePlus hotkey. To change
the hotkey function, go to the MyFavorite > Shortcut > Shortcut1 menu.
8. Volume Down button : Decrease the volume level.
9. Volume Up button : Increase the volume level.
10. IR emitter: Responsible for infrared signal transmission.
For battery replacement:
Open the battery cover and install the batteries into the battery compartment.
Then replace the battery cover.
AAA
AAA